EULOIA. CATHAICA. 207 



strong lens, while the last quarter of the penultimate and the 

 whole of the last whorl is more or less regularly malleated, giving 

 the appearance here and there of being furnished with spiral or 

 obliquely descending ridges. The shell, moreover, is ornamented 

 with two pale fuscous bauds, one comparatively narrow, midway 

 between the suture and periphery, the other practically covering 

 the base of the shell from the periphery downwards, but becoming 

 rather diffused about the umbilicus. 



A specimen from Sikkim, in the Beddome collection, agrees 

 fairly well with elatior, but it is without the bands and is 

 subangulated at the periphery except towards the mouth. It is 

 also a trifle broader in proportion, measuring 16'5 mm. in diameter, 

 alt. 15 mm. 



Genus CATHAICA, Mollendorff. 



Cathaica, Mollendorff, Jahrb. D. Malak. Ges. xi, 1884, p. 339 (as 

 group of Helix) ; Pilsbry, Man, Conch, ser. 2, viii, 1893, p. 204 

 (as section of Helix), ix, 1895, p. 205 (as section of Eulota) 

 Andreae, Mitt. Roemer Mus., no. ]2, 1900, p. 2; Mollendorff, 

 Ann. Mus. Zool. Acad. Imp. Sci. St. Petersburg, iv, 1899, p. 101 ; 

 ibid., op. cit., vi (1901), 1902, p. 302. 



TYPE, Helix fasciola, Drap. (=pyrr7iozona, Phil.). 



Range. North and Middle China, Central Asia, Kashmir and 

 Burma. 



" Testa umbilicata, depressa, striis vel costis ruditer sculpta, 

 anfr. 5-7, convexiusculi, ultimus plerumque ad peripheriam 

 angulatus vel carinatus, apertura obliqua, peristorna intus in- 

 crassatum margine supero plerumque recto, externo et infero 

 plus minusve expansis, columellari dilatato." (Mollendorff.) 



" Animal with the tail rounded above, no longitudinal groove. 

 Sole indistinctly tripartite. 



" Jaw arcuate, with 3 to 7 weak ribs. 



" Eadula with blunt mesocones on median and lateral teeth ; 

 marginals with the ectocone simple or bifid. 



" Genitalia: penis slender, ending in a long retractor and the 

 terminal vas deferens. Dart sack large, opening into atrium, one 

 dense cluster of about 10 club-shaped, glandular mucus glands 

 inserted near its base. Spermatheca duct long." {Pilsbry.} 



Subgenus CAMPYLOCATHAICA, Andreae. 



Campylocathaica, Andreas, Mitt. Roemer Mus. no. 12, 1900, p. 5; 

 Mollendorff, Ann. Mus. Zool. Acad. Imp. Sci. St. Petersburg, vi 

 (1901), 1902, p. 306. 



TYPE, Helix przewalskii, von Martens. 



Range. Central Asia and Burma. 



Shell less solid than in the subgenera Eueaihaica and 



